Weather strip



F. REEsE I WEATHER STRIP Filed April 8, 1927 Patented Mar. 27, 1928.

entree stares fee a FRANK REESE, F MINNEAPOLIS, MINNESOTA, ASSIGNOR TO REESE METAL WEATHER STRIP 00., OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF MINNESOTA.

WEATHER STRIP.

Application filed April 8,

My present invention relates to a weather strip device for a sliding sash and has f'pr lts object the. provision of a simple and highly eliicient weather strip device that Will effectually reduce the infiltration of air and accommodate itself to changes which occur in the fit of a sash, so that neither the efliciency of the weather strip device nor the operating quality of the sash will be adversely effected by these changes. Such changes in the fit of a sash are caused by the shrinking or swelling of the wood as the moisture content varies or by the warpage of the sash due to a greater moisture content on one side of the sash from the other. Shrinking and warping are always present, to a greater or less degree, in sashes which have one side exposed to the weather, alternately dry and damp, and the other side to room atmosphere. Heretofore, Weather strip devices have not been designed to compensate for bowing or warping of a sash with relation to its .frame in whichit is mounted, with the result that the grooves for weather strips, or interlocking members thereof attached to the sash, must be made oversize to permit free operation of the sash with consequent lack of eficiency in the weather strip devices in preventing leakage of air.

My present weather strip device is designed to compensate for the bowing or warping of a sash with relation to the frame in which it is mounted.

To the above end, generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary View in horizontal section showing double-hung sashes mounted in a frame, and to each and to the frame is applied one of the weather strip devices;

Figs. 2 and 3 are fragmentary perspective views showing the frame and sash members, respectively, for the upper sash.

9 The numeral 4 indicates a window frame having an outer groove 5 in which an upper sash 6 is slidably mounted, and an inner groove 7 in which a lower sash 8 is slidably mounted. The grooves 5 and 7 are formed by an outer fixed stop 9 and inner removable 1927. Serial 1V0. 181,985.

stop 10, and a parting strip 11 removably mounted in a groove 12 formed in the frame 4. between the grooves 5 and 7. The weather strip devices for the two sashes 6 and 8 are substantially identical, the one with the other, and the description of one will suffice for the other.

Each weather strip device comprises a frame member 13 and a sash member 14 each of which is formed from a single piece of metal. The frame member 13 is inthe form of a double fold that is S-shaped in cross section and comprises inner, intermediate, and outer substantially parallel flanges 15, 16 and 17, respectively. lit will be noted that the fold 18, formed by the flanges 15 and 16., is relatively narrow, and the fold 19, formed by the flanges 16 and 17 is relatively wide, and that said folds are reversely arranged. The inner flange 15 is extended to afford an anchor flange 20 that extends into the groove 12 at the inner face of the parting strip 11, and is secured by nails 21 to the frame a. The flange 15 bears directly on the adjacent face of the parting strip 11 within the groove 7.

The sash member 14 is in the form of a double fold that is S-shaped in cross section and comprises inner, intermediate, and outer substantially parallel flanges 22, 23 and 24, respectively. The fold 25, formed by the flanges 22 and 23, is relatively narrow, and the fold 26, formed by the flanges 23 and 24, is relatively wide. The folds 18and 19 are reversely formed in respect to the folds 25 and 26. The flange 22 is extended to form an anchoring flange 27 and is laterally ofl'set inward from said flange 22.

The sashes 6 and 8 are rabbeted at 28 in their opposing faces, adjacent to the parting strip 11, to receive the weather strip devices. The anchored flanges 27 bear directly on the sashes 6 and 8 and are secured thereto by nails 29. When the frame member 13 and the sash member of each device are assembled, the fold 25 fits into the fold 19 and the flange 17 extends into the fold 26 and the offset anchoring flange 27 is in substantially the same plane as the anchoring flange 20. By reference to Fig. 1, it will be notedthat the folds 18 and 25.are unobstructed and compressible and permit free yielding movement of the frame and sash members to compensate for swelling and Warping of the sashes.

While the anchoring flanges 20 and 27 are shown in substantially the same plane as the flanges with which they are formed, they may be bent at anglesthereto when it is desirable to secure the members of the weather strip devices to other parts of the frame and sashes. It is-required, in my present device, only that-the sash member be attached to the sash and the frame member to the frame, each by one flange offset from the main body of each weather strip member, either in the same plane or at angle thereto, in such manner as to permit free flexing of the weather strip members as the warpedsash carrying stantially flat, inner, intermediate and outer sections, said members being fitted the one within the other, one of the. sections of each member having an extension affording an anchoring flange, the sides of one of the single folds of each member being laterally spaced to form an unobstructed gap and arranged to yield and compressible to permit lateral movementof the interlocked members between the members of the frame and sash to which they are attached, said sash member being free for longitudinal sliding movement in the frame member.

2. A- weather strip for a sash slidably mounted in a channel-shaped runway in a frame, said Weather strip comprising outer, intermediate and inner laterally spacedmembers, the former of which is attached to the frame, said sash having a part slidably interlocked with the intermediate and mner flanges of said weather strip, the outer and intermediate members of the weather strip being in the form of a U-shaped fold that affords an open unobstructed gap between the sash and one side of the runway to allow the'weather strip to yield accordion-like and permit lateral movement of the inner flanges with relation to the outer flange as warping or bowing of the sash may require.

In testimony whereof I aflix my signature.

' FRANK REESE. 

